I DO wish they'd kept the original design they had in 2, and I DID notice Cera's voice change, which I don't think suits her as well. Yeah, the songs were...not really that good. I think "Big Water" is cute, but the movie would've been fine without it.
Oh it's soo good to finally see someone agree with me about Cera's voice change. In the poll most people say they actually liked Anndi McAfee more then Candy Hutson! I've never been keen on Anndi McAfee role as Cera, it's sounds like a stereotypical moody teenager, I also think Anndi was too old to voice Cera in the first place. Also for me Cera's cute factor was down graded when Anndi McAfee started voicing her. If I were to make a new LBT film I'd get a new voice for Cera big time! And revert Chomper back to his LBT 2 design.
Now Candy Hutson on the other hand I've always liked and suite's Cera, as her Cera voice actually sounds like a tough tomboyish young girl. Plus she was the only returning member of the original cast for the squeals. She would have been quite young when she voiced Cera in the first film, she was actually younger then Judith Barsi who voiced Ducky.... Oh Judith....

Also the 4th LBT film was the last film Candy did.